<html>
  <head>
    <title>deck.gl GreatCircleLayer Example</title>

    <script src="https://unpkg.com/deck.gl@^9.0.0/dist.min.js"></script>
    <script src='https://unpkg.com/maplibre-gl@3.6.0/dist/maplibre-gl.js'></script>

    <link href='https://unpkg.com/maplibre-gl@3.6.0/dist/maplibre-gl.css' rel='stylesheet' />
    <style type="text/css">
      body {
        width: 100vw;
        height: 100vh;
        margin: 0;
        overflow: hidden;
      }
      .deck-tooltip {
        font-family: Helvetica, Arial, sans-serif;
        padding: 6px !important;
        margin: 8px;
        max-width: 300px;
        font-size: 10px;
      }
    </style>
  </head>

  <body>
  </body>

  <script type="text/javascript">
    const {DeckGL, GreatCircleLayer} = deck;

    const greatCircleLayer = new GreatCircleLayer({
      id: 'great-circle',
      data:
        'https://raw.githubusercontent.com/visgl/deck.gl-data/master/website/flights.json',
      getSourcePosition: d => d.from.coordinates,
      getTargetPosition: d => d.to.coordinates,
      getSourceColor: [64, 255, 0],
      getTargetColor: [0, 128, 200],
      widthMinPixels: 5,
      pickable: true
    });

    new DeckGL({
      mapStyle: 'https://basemaps.cartocdn.com/gl/dark-matter-nolabels-gl-style/style.json',
      initialViewState: {
        longitude: -122.38,
        latitude: 37.6,
        zoom: 1,
        maxZoom: 20,
        pitch: 30,
        bearing: 0,
      },
      controller: true,
      layers: [greatCircleLayer],
      getTooltip: ({object}) => object && `${object.from.name} to ${object.to.name}`
    });
  </script>
</html>
